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What is the legal blood alcohol concentration (BAC) limit for most drivers in Ontario aged 21 and over?

For most drivers aged 21 and over in Ontario, the legal blood alcohol concentration (BAC) limit is 0.08% (80 milligrams in 100 millilitres of blood). Driving wi

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Question: What is the legal blood alcohol concentration (BAC) limit for most drivers in Ontario aged 21 and over?

Answer options:

  • 0.05% ✅ 0.08%
  • 0.00%
  • 0.02%

Correct answer: 0.08%

Explanation: For most drivers aged 21 and over in Ontario, the legal blood alcohol concentration (BAC) limit is 0.08% (80 milligrams in 100 millilitres of blood). Driving with a BAC over this limit is a criminal offense. Note that there are lower limits for younger drivers or those with graduated licenses, but 0.08% is the general criminal limit.

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